Agile testing for web API with Postman · 2018-10-23 · Rest-assured test • First choice for most people • Java Domain Specific Language (DSL) for test • Support response parsing

Agile testing for web API with PostmanPresented by Anthony Todisco

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Agenda

• API and Agile

• API testing

• Rest-assured

• Postman

• Our journey with Postman

• Key takeaway

• Q&A


User Conference onAdvanced Automated Testing

API and Agile

• Growth in the number of API

• Importance of time to market



API and Agile

• Agile methodology to produce quick results

• But UI testing is currently:• too slow

• Not adapted to Agile



API and tests• Test automation is the key

• Multiple possibilities for test automation



Which one to choose?

Rest-assured test• First choice for most people

• Java Domain Specific Language (DSL) for test

• Support response parsing (XML and JSON)

• BDD Syntax:• Easy reading• Maintainable

• Source code and tests in the same project



Rest-assured test• No report need another unit test framework

• What if your code is not Java ?

• If your QAs are not developers ?



Postman

• A UI tool for API testing

• Good for:• Exploratory tests

• Functional and automated tests

• Easy to use

• Support response parsing (XML and JSON)

• Define the concept of collection for a group of requests





Postman

• CLI (Newman) that integrates greatly with Jenkins

• CLI, XML and HTML reports

• Support SOAP call

• Basic Javascript testing with boolean



Postman



Postman



Our journey with Postman: Split



488000 lines

1830 lines

500 lines

2100 lines

Less than 4000 lines

Our journey with Postman: Combine



Combine them

Our journey with Postman: BDD



Our journey with Postman: BDD



Our journey with Postman: Replication• Saved re-usable functions into Postman environment



510 lines on every request

5 lines on every collection

Our journey with Postman: Replication

• Use the collection structure at your advantage



Our journey with Postman: Feedbacks



80 %

Easiness

Better communication

Reduction of file size (after splitting)

30 %

Between developers, QAs and PO with BDD

Using BDD and re-used function

Time reduction on develop/review per US

Key takeaway

• Simple yet powerful tool

• Use small collections to share work

• Integration of Newman with Jenkins

• Avoid duplicate code by using environment

• Use Collection structure to your advantage



Thank youAny questions?


Documents

Agile testing for web API with Postman · 2018-10-23 · Rest-assured test • First choice for most people • Java Domain Specific Language (DSL) for test • Support response parsing